1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_wx.c b/drivers/net/wireless/bcm43xx/bcm43xx_wx.c
index 7b665e2386a8..d6d9413d7f23 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_wx.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_wx.c
@@ -105,18 +105,24 @@ static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev,
         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
         unsigned long flags;
         u8 channel;
+        s8 expon;
         int freq;
         int err = -EINVAL;
 
         mutex_lock(&bcm->mutex);
         spin_lock_irqsave(&bcm->irq_lock, flags);
 
-        if ((data->freq.m >= 0) && (data->freq.m <= 1000)) {
+        if ((data->freq.e == 0) &&
+            (data->freq.m >= 0) && (data->freq.m <= 1000)) {
                 channel = data->freq.m;
                 freq = bcm43xx_channel_to_freq(bcm, channel);
         } else {
-                channel = bcm43xx_freq_to_channel(bcm, data->freq.m);
                 freq = data->freq.m;
+                expon = 6 - data->freq.e;
+                while (--expon >= 0)    /* scale down the frequency to MHz */
+                        freq /= 10;
+                assert(freq > 1000);
+                channel = bcm43xx_freq_to_channel(bcm, freq);
         }
         if (!ieee80211_is_valid_channel(bcm->ieee, channel))
                 goto out_unlock;